Canadian Pacific Railway

HS-10 DTC-2 (Diesel Torque Converter) 500 hp (twin Caterpillar) 44-ton CLC #2981 3/57
Ogden shop switcher with newly out-shopped GP-9 8835.
Collection of Al Howlett
Note: These units were always referred to as "HS-xx" for Hydraulic Switcher.